Snowplow



N. HILL.

SNOWPLUWl APPLICATION FILED IAII.2I. 192|.

1 ,401,256, I Patented Dec. 27, l1921.

entfernen! UNITED i STATES NELS HILL, OF ST. PAUL, MINNESOTA.

sNowPLow.

Specication of Letters Patent.

Patented Dec. 27, 1921.

Application led January 27, 1921. Serial No. 440,281.

To all whom it may concern.'

Be it known that I, Nens HILL, a citizen of the United Sta-tes, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Snowplow, of which the following is a specification. i

My invention relates to snow plows, and the main object is to provide a snow plow that ma be propelled in various manners and willy work well regardless of whether the wind blows from the one side or the other.

In the accompanying drawing, Figure 1 is a top or plan view of my improved snow plow with the roof of the cab removed. ig. 2 is a partly sectional side elevation of Fig. 1. In both views the cab doors are omitted from the door openings 19.

Fig. 3 is an enlarged section on the line 3-3 in Fig. 2.

Fig. 4 is a side elevation showing the plow as mounted on a Hat car or other truck adapted to be pushed by a locomotive or other engine, instead of having the structure provided with its own motive power, as in the Figs. 1 and 2. y

Referring to the drawing by reference numerals, I provide a kind of motor truck composed of a body 5 mounted on axles having driving wheels 7 and two front steering wheels 8 having stub axles 9, both of said stub axles being of the regular automobile type for steering, having the forwardly projecting arms 9 connected by a link 9" and one of them having the inwardly projecting steering arm 9C operated by a drag link 10, rocker arm 11 and shaft 12, the latter being operatively connected to a steering column 13 having a hand wheel 141 operated by a driver 15, who sits on a seat 16 in a cab 17 having windows 18 and one or more door openings 19 with doors (not shown).

The car is propelled by an engine 20 which projects partly below the flat main frame 5 and has its shaft 21 suitably connected with the torsion shaft 22 of the usual differential gearing in the housing 23, by a suitable transmission 24x in the housing 24. 25 is the fly wheel housing of the enme. g Driven by one of the transmission gears is a comparatively lar gear 26, having a shaft 27, composed o sections connected by universal joints 28, 29 and havlng its forward end formed as a worm-screw 30, which screw rotates a worm gear 351 fixed on a shaft 32. This shaft carries sprockets operating two endless conveyers and Set which are stretched over said driven sprocl ets and over idle front rollers 35.

About central on the truck platform or fiat frame 5 is secured by bolts a round embossment 36 having its outer edge undercut to form a recess 38 in which rctates the internally toothed circular' edge 39 of the rest of the floor, 59 of the cab 17. Said curved rack 39 is engaged by a gear pinion 4 0 fixed on an upright shaft Ll1 rotatingl in a hollow post L11`^ and having a crank 12 by `which the driver may rotate the cab about the circular pai-t of the floor. Said circular part carries a pivoted latch 178 arranged to engage alternately in either one ot two notched blocks 4:11 and 44% fined on the rotary portion of the cab floor according to which end of the cab is 'to point forward during the operation of the plow.

It will namely be observed that the cab is formed with two reversely beveled end er body portions which form two diagonally disposed grooved deliectors 45, t6 either of which maybe turned forward to receive and guide sidewise the snow plowed up by a shovel-shaped scoop 47 having side guards 48 and being supported. by aframe entension 419 having braces 50 suviporting it. 'The deflectors 4:5, L16 may have lateral extensions 45X, 46X to force the snow sufficiently away from the side of the machine so it can in no event get back into the plowed road in front of the rear wheels.

In the modification sho'wi'i in et the arrangement is the as in. Figy 1 and 2 as far as the parts are concerned having the same numerals as in 1 and 2, but no independent engine is employed, the frame 5 being either provided with supporting wheels 5l, 52 or it may be placed and secured upon a railway car of the flat-car type. In either case the machine is then propelled forward by a railroad engine or other motor car.

In the operation of the machine it .is run at a good speed, so that the shovel 47 scoops the snow up and as the snow is pushed rearwardly by the snow in :front of it, it is deflected laterally over on the ground by the forward defiector and often by wind blowing in the direction of the arrow B in Fig. l. If the wind blows inthe reverse direction the @ab is turned with the delieotor H16 forward. and thus the wind from either side may he utilized to eid in the operai-tion. And during the operation the endless carriers Se serve to prevent clogging oit snow intermediete the scoop and the forward deiector.

What claim is:

l. snow plow comprising lztt mein frame with a fla-t snow seo-op et its iront end, a body mounted upon the mein traine to rotate in a horizontal plane and hef-Jing two rei/ersely arranged. greored snow deflecting boards one at each end of it, and

Y inea-ns for turning and ineens 'for holding` said body with either deieetor in e forward direction so as to delleet laterally the snow taken up by the scoop, and means or supi porting and for propelling forward the said mein frame.

2. The structure specified in claim l, and endless eonveyers at the junction of tl e sooog and the forward deector to prevent clogging of snow at said point, seid oonveyers having operative Connection with the propelling means.

3. The structure' speeilied in claim l, Suid rotatable body forming a. Cab with windows for an operator in the ofi-b to see through and the ineens for rotating` und for holdingl rotated seid body beine` located within the ouh.

Ll. The structure specified in eluiin l, said Supporting ineens und propellinfl` menne comprising` enpprntingil wheels on the inuin freine und un engine carried by the ii'runie, and operative Connection between the engine and the supportinff wheels.

5. The structure speeiied in ehiiin L. said rotatable bod;7 forming` u cub with non rotatable Yfloor hxed on the niain Vtranne. und the Supporting;` ineens oi the inem freine coinprieing' reni: driving;1 wheele-a sind iront steering wheels, and ineens extending" unwzird into the Cub for steering` the Vliront NICLS l-lllll). 

